Reykholt

Iceland experienced intense cold overnight, with -19.8°C recorded at Sandskeið around 6 a.m., and meteorologist Einar Sveinbjörnsson says it is likely the coldest 30 October on record. Reykjavík dropped to just over -8°C, and an Icelandic Met Office table showed -20.2°C at Setur south of Hofsjökull overnight.

A mosquito species, Culiseta annulata, has been confirmed in Iceland after specimens of both sexes were captured in Kjósarhreppur on October 16–18, 2025. The find suggests mosquitoes may now be present in the country, long considered free of them.

A magnitude 3.3 earthquake struck near Grjótárvatn on Mýrar this morning, the largest in the Ljósufjöll volcanic system in about three and a half months. Roughly 45 quakes have occurred since last night at 15–20 km depth, and the Icelandic Met Office notes concern would rise if activity shallows.

Vestari Hagafellsjökull, on the south side of Langjökull, has retreated about 200 meters since 2023, according to a preliminary glacier-terminus survey conducted on 20 September 2025. Since 2009 the glacier has receded roughly 973 meters through 2023, with accelerated retreat likely tied to this summer’s warmth.

A sudden glacial outburst flood from a marginal lake near Langjökull sent water into the Svartá and downstream into the Hvítá in Borgarfjörður, peaking above 400 cm overnight before easing to just over 300 cm. Authorities warn further river flooding is possible in coming days, with increased landslide risk in southeast Iceland.

Severe winds on the Holtavörðuheiði pass in Húnaþing Vestra, Iceland, blew apart three caravans, prompting a multi-hour rescue response by the Húnar Hvammstanga search and rescue team.

An inspector from the Icelandic Fisheries Agency counted around 100 farmed salmon in the lower section of Haukadalsá, marking the largest occurrence of escaped farmed salmon in an Icelandic river, and plans are underway for removal operations including using anglers and Norwegian divers.

We've become very used to seismic activity in Iceland's southwest corner, but last night, four earthquakes above magnitude three hit a very different area - the Kolbeinsey ridge, far off the country's northern coast.

The thermometer at the main visitor centre in Þingvellir National Park went all the way down to –9.6°C last night and meteorologists confirm that is one of the coldest temperatures ever recorded in a built-up area at this time of year—and could even have been a new record.

A group on a glacier expedition on Langjökull yesterday stumbled across a puffin lying in the snow. According to group leader Martha Jónasdóttir, the bird was found right at the centre of the glacier—Iceland's second-largest.

Last week’s storm was the most fatal natural disaster to Iceland’s horses in decades. The situation was worst in Vestur- and Austur Húnavatnssýsla, but horses died elsewhere around the country as well.

The landslide is thought to be the largest that has ever occurred in Iceland. Experts say that the uncommonly wet summer weather is to blame for the event.

A temporary bridge in Borgarfjörður, Iceland, collapsed after an ice jam in the Hvítá River caused significant flooding.